Yi Xin is currently a Research Fellow at the Asia Competitiveness Institute (ACI), Lee Kuan Yew School of Public Policy. Xin specialises in evidence-based policy research in international economics, labour economics, and regional economics. He is an adjunct lecturer at Singapore Management University and reviews for academic journals such as Economic Modelling, Journal of Southeast Asian Economies, Review of World Economics (Weltwirtschaftliches Archiv), Singapore Economic Review, and Taiwan Economic Review.

Xin obtained his PhD in Economics from Singapore Management University and his Bachelor of Science in Mathematics and Economics from Nanyang Technological University, Singapore.